用代码创建DataGrid的多链接及checkbox事件响应(downmoon)

<!-- .lineBorderBlue1 { BORDER-TOP: #999999 1px groove; BORDER-BOTTOM: #999999 1px groove; BORDER-LEFT: #999999 1px groove; BORDER-RIGHT: #999999 1px groove; background-color:#efefef; } --> 本例用代码实现了创建DataGrid并响应了CheckBox事件，并实现了超链接列的多变量传送。

创建一个前台页面
CreateDataGrid.aspx:
在Form中添加一个PlcaeHolder,ID为"ph",Runat="Server"
后台页面
CreateDatagrid.aspx.cs

publicclassCreateDataGrid:System.Web.UI.Page ...{ publicStringsql="SelectFirstName,LastName,HomePhone,TitleFROMEmployees"; publicDataGridmygrid=newDataGrid(); protectedSystem.Web.UI.WebControls.PlaceHolderph; publicStringSortExpression; privatevoidPage_Load(objectsender,System.EventArgse) ...{ //CreateDataGridForm.Controls.Add(MakeGrid()); this.ph.Controls.Add(MakeGrid()); } //protectedoverridevoidCreateChildControls() //{ //base.CreateChildControls(); //} Web窗体设计器生成的代码#regionWeb窗体设计器生成的代码 overrideprotectedvoidOnInit(EventArgse) ...{ // //CODEGEN:该调用是ASP.NETWeb窗体设计器所必需的。 // InitializeComponent(); base.OnInit(e); } /**////<summary> ///设计器支持所需的方法-不要使用代码编辑器修改 ///此方法的内容。 ///</summary> privatevoidInitializeComponent() ...{ this.Load+=newSystem.EventHandler(this.Page_Load); } #endregion /**////<summary> ///创建一个模板列和一个列模板 ///</summary> publicTemplateColumntm=newTemplateColumn(); publicColumnTemplatemycol=newColumnTemplate(); //返回DataView publicDataViewCreateDataSource() ...{ stringstrSql; strSql="DataSource=localhost;InitialCatalog=Northwind;UserId=sa;Password=sa;"; SqlConnectionconn=newSqlConnection(strSql); SqlDataAdapterdb_sqladaptor=newSqlDataAdapter(sql,conn); DataSetds=newDataSet(); db_sqladaptor.Fill(ds,"Employees"); DataViewmyView=ds.Tables["Employees"].DefaultView; //myView.Sort=SortExpression; //Response.Write(sql); returnmyView; } /**////<summary> ///处理排序 ///</summary> ///<paramname="sender"></param> ///<paramname="e"></param> publicvoidSort_Grid(Objectsender,DataGridSortCommandEventArgse) ...{ SortExpression=e.SortExpression.ToString(); Session["SortField"]=SortExpression.Trim(); if(Session["Order"]==null)Session["Order"]="ASC"; Session["Order"]=(Session["Order"].ToString()=="DESC")?"ASC":"DESC"; if(Session["SortField"]==null)Session["SortField"]="FirstName"; sql+="ORDERBY"+Session["SortField"].ToString()+""+Session["Order"].ToString(); mygrid.DataSource=CreateDataSource(); mygrid.DataBind(); } /**////<summary> ///创建和设置DataGrid属性，这里的属性设置为固定值，但也可以动态设置 ///</summary> ///<returns></returns> publicDataGridMakeGrid() ...{ mygrid.CellPadding=2; mygrid.Attributes.Add("align","center"); mygrid.CellSpacing=0; mygrid.Width=500; mygrid.BorderWidth=1; mygrid.BorderColor=ColorTranslator.FromHtml("Black"); mygrid.AutoGenerateColumns=false; mygrid.ForeColor=ColorTranslator.FromHtml("Black"); mygrid.Font.Size=9; mygrid.Font.Name="宋体"; mygrid.AllowSorting=true; /**////sort命令的事件处理器 //mygrid.SortCommand+=newDataGridSortCommandEventHandler(Sort_Grid); mygrid.ItemDataBound+=newDataGridItemEventHandler(mygrid_ItemDataBound); /**////设置headerstyle mygrid.HeaderStyle.BackColor=ColorTranslator.FromHtml("Gold"); mygrid.HeaderStyle.ForeColor=ColorTranslator.FromHtml("Black"); mygrid.HeaderStyle.Font.Name="宋体"; mygrid.HeaderStyle.Font.Size=9; mygrid.HeaderStyle.Font.Bold=true; mygrid.HeaderStyle.HorizontalAlign=HorizontalAlign.Center; /**////设置alternatingstyle mygrid.AlternatingItemStyle.BackColor=ColorTranslator.FromHtml("Silver"); mygrid.AlternatingItemStyle.ForeColor=ColorTranslator.FromHtml("Black"); /**////设置itemstyle mygrid.ItemStyle.HorizontalAlign=HorizontalAlign.Left; /**////创建绑定列和属性 HyperLinkColumnFirstName=newHyperLinkColumn(); BoundColumnLastName=newBoundColumn(); BoundColumnHomePhone=newBoundColumn(); BoundColumnTitle=newBoundColumn(); //FirstName.HeaderText="名字"; //FirstName.DataField="FirstName"; //FirstName.SortExpression="FirstName"; FirstName.HeaderText="名字"; FirstName.DataTextField="FirstName"; FirstName.SortExpression="FirstName"; FirstName.NavigateUrl="http://localhost/test.aspx"; LastName.HeaderText="姓"; LastName.DataField="LastName"; LastName.SortExpression="LastName"; HomePhone.HeaderText="电话"; HomePhone.DataField="HomePhone"; HomePhone.SortExpression="HomePhone"; Title.HeaderText="职务"; Title.DataField="Title"; Title.SortExpression="Title"; mygrid.Columns.AddAt(0,FirstName); mygrid.Columns.AddAt(1,LastName); mygrid.Columns.AddAt(2,HomePhone); mygrid.Columns.AddAt(3,Title); /**////设置模板列属性和ItemStyle模板 tm.HeaderText="**删除信息**"; tm.HeaderStyle.HorizontalAlign=HorizontalAlign.Center; tm.ItemStyle.BackColor=ColorTranslator.FromHtml("#FFF778"); tm.ItemStyle.HorizontalAlign=HorizontalAlign.Center; TemplateColumnaa=newTemplateColumn(); ColumnTemplate1tt=newColumnTemplate1(); aa.ItemTemplate=tt; /**////创建列模板。 ///列模板从ITemplate继承 tm.ItemTemplate=mycol; mygrid.Columns.AddAt(4,tm); mygrid.Columns.AddAt(5,aa); /**////绑定和返回 mygrid.DataSource=CreateDataSource(); mygrid.DataBind(); returnmygrid; } privatevoidmygrid_ItemDataBound(objectsender,DataGridItemEventArgse) ...{ if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem) ...{ HyperLinklink=(HyperLink)e.Item.Cells[0].Controls[0]; stringurl=link.NavigateUrl; 　　　　//实现多参数链接 url+="?id="+e.Item.Cells[1].Text+"&id2="+e.Item.Cells[2].Text; link.NavigateUrl=url; } } }

再添加关键的几段

/**////ColumnTemplate从ITemplate继承。 ///"InstantiateIn"定义子控件的属于谁 publicclassColumnTemplate:ITemplate ...{ publicvoidInstantiateIn(Controlcontainer) ...{ LabelmyLabel=newLabel(); myLabel.Text="点击删除"; CheckBoxmycheckbox=newCheckBox(); container.Controls.Add(myLabel); container.Controls.Add(mycheckbox); } }

添加CheckBox事件：

publicclassColumnTemplate1:ITemplate ...{ publicvoidInstantiateIn(Controlcontainer) ...{ LabelmyLabel=newLabel(); myLabel.Text="test"; CheckBoxlnk=newCheckBox(); lnk.AutoPostBack=true; lnk.CheckedChanged+=newEventHandler(lnk_CheckedChanged); container.Controls.Add(myLabel); container.Controls.Add(lnk); } privatevoidlnk_CheckedChanged(objectsender,EventArgse) ...{ CheckBoxlnk=(CheckBox)sender; DataGriddg=(DataGrid)lnk.NamingContainer.NamingContainer; if(dg==null)return; //实现CheckBox事件响应 DataGridItemdi=(DataGridItem)lnk.NamingContainer; HyperLinklnkID=(HyperLink)di.Cells[0].Controls[0]; strings2=lnkID.Text.Trim()+lnk.ID+"被选中了！"; } }